Valve



July 1, 1941. v c w STRONG 2,247,590

VALVE Original Filed Aug. 2, 1939 //\/L/E/\/ TUR CHARLES w. STRONGPatented July 1, 1941 VALVE Charles W. Strong, Portland, Oreg.

Substitute for abandoned application Serial No. 288,020, August 2, 1939.This application April 7, 1941, Serial No. 387,284

3 Claims.

A second object is the provision in such a valve of means to provide forthe snap-action of the valve from the fully open to the fully closedadjustment.

A third object of this invention is the provision in such a valve ofautomatic means to compensate the normal wear of the sealing means.

In the drawing:

Figure 1 represents a view of the end of the complete valve Figure 2represents a longitudinal diametral section taken on the line 22 ofFigure 1, particularly showing the position of the parts when the valveis closed.

Figure 3 represents a view in longitudinal diametral section of thevalve, particularly showing the position of the parts when the valve isopen.

Figure 4 is a section taken on the line 4-4 of Figure 2.

Figure 5 is a section taken on the line 5-5 of Figure 3.

Figure 6 represents on an enlarged scale an end view of the movablevalve member as would be viewed in Figure 1.

Referring now more particularly to the drawmg:

The body of the valve l is made conveniently of a hexagonal crosssection to adapt the same for handling with a wrench and is furtherbored longitudinally and provided with special features to retain themoving parts. At both ends, pipe threads 2 and 3 are provided. A recess4 of greater diameter than the pipe thread 3 provides a means in which afilter 5 and snap-ring 6 may be retained. A compression spring 1 bearsagainst the snap-ring 6 and exerts a thrust against the valve 8, toretain the latter in a closed position, to stop the bore 9 communicatingwith a pipe screwed into the thread 2. A valve lever ID is formed with ahemispherical portion ll ground into a seat l2 in the body of the valveand further extends interiorly to contact the valve 8, as shown inFigures 2 and 3.

A control lever I3 is pivotally mounted upon the body of the valve bymeans of the screws i l and I5 situated in laterally spaced relationshipto the axis, or center of the hemispherical part H and in exactalignment therewith in the longitudinal disposition. A compressionspring It bears against the lever l3 and exerts force against the valvelever 10, slidable through the control lever I3 at I! to retain thehemispherical part ll of the valve lever in the seat l2. A longitudinalelongated slot [3, extending interiorly from the hemispherical seat [2,allows of longitudinal oscillation of the extremity I 9 and of the valvelever It to unseat the valve 8 normally retained in the closed positionby the spring 1.

It is to be observed that the control lever l3 and the valve lever I!)are so pivotally mounted with relation to each other, as to provide thatthe same will be in toggle relationship in a manner to allow of theextension of the spring I6 when the control lever l3 and the valve leverit are at either extremity of movement and in the compression of thespring it, when these parts are in intermediate positions. Thus, if thecontrol lever l3 be moved in a counterclockwise position as viewed inFigure 2 through slightly more than half the full movement, the spring I6 will operate to force the parts through the entire movement to disposethe same in the positions shown in Figure 3.

The snap-ring 6 shown in Figure 5 is provided with inwardly extendinglugs 20 and 21 to allow of placing the same in the recess 22 by means oflong nosed pliers, or other suitable tools. It will be apparent from thedrawing that the entire assembly of the complete valve is accomplishedby placing this snap-ring 6 and attaching the control lever by means ofthe two screws l4 and I5.

The valve 8 illustrated in detail in Figure 6 is provided with a seriesof perforations as 23 and 24 through which fluids may flow toward theValve 8 and seat therefor. The periphery 25 of the flange 26 is slidablyfitted within the bore 21 to provide for the accurate presentation ofthe valve 8 to its seat 28.

It will be apparent that the spring It will, in addition to providingfor the snap-action of the valve, continuously take up the wearoccurring 'between the hemispherical part II and the seat I2 therefor,thus, providing an extremely durable, easy acting and safe valveparticularly useful in connection with gas appliances. The end 3 of thevalve would, of course, in accordance with good practice be connected tothe pressure source.

While I have shown a particular form of embodiment of my invention, I amaware that many minor changes therein will readily suggest themselves toothers skilled in the art without departing from the spirit and scope ofthe invention. Having thus described the invention, what I claim as newand desire to protect by Letters Patent is:

1. A valve comprising, a tubular body formed interiorly with avalve-seat and exteriorly with a pivot-seat forming an aperture in saidtubular body, a valve for said valve-seat, a valve lever extendingthrough said aperture and pivotally engaging said pivot-seat, exteriorlink-means pivotally attached to said body extending to slidably engagethe exterior extremity of said valve-lever,

and a spring extending between the free end of said link-means and thepivotal engagement of said valve-lever.

2. A valve comprising, a tubular body formed interiorly with avalve-seat and exteriorly with a'pivot-seat forming a lateral aperturein said tubular body, a valve for said valve-seat, a valveleverextending through said aperture and pivotally engaging said pivot-seat,exterior linkmeans pivotally attached to said body upon a substantiallydiametral axis, which together with the axis of said pivot-seat iscontained in a plane normal to the axis of said body, and a compressionspring extending between a pivotal bearing i at said pivot-seat and thefree end of said linkmeans;

3. A valve comprising, a tubular body formed interiorly with avalve-seat and exteriorly with a pivot-seat forming a lateral aperturemedially of its ends, a valve for said valve seat, a valveleverextending through said aperture to operate said valve formed with amedially disposed pivotal feature engaging said pivot-seat, exteriorlink-means pivotally attached to said body upon a substantiallydiametral axis which together with the axis of said pivot-seat iscontained in

